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Questions and Answers
What is the DOC (drug of choice) for Staphylococcus aureus?
What is the DOC (drug of choice) for Staphylococcus aureus?
- Cephalosporin
- Penicillin
- Vancomycin (correct)
- Oxacillin
What is the mechanism of resistance of Staphylococcus aureus to B-lactam antibiotics?
What is the mechanism of resistance of Staphylococcus aureus to B-lactam antibiotics?
- Increased affinity to antibiotics
- Activation of antibiotic efflux pumps
- Decreased permeability of cell wall
- Production of B-lactamase (correct)
What is the characteristic feature of Staphylococcus aureus on Mannitol salt agar (MSA)?
What is the characteristic feature of Staphylococcus aureus on Mannitol salt agar (MSA)?
- Shows increased susceptibility to penicillin
- Produces green colonies
- Can ferment mannitol (correct)
- Forms beta-hemolysis
Which gene is altered in Staphylococcus aureus to confer resistance to nafcillin (methicillin, oxacillin)?
Which gene is altered in Staphylococcus aureus to confer resistance to nafcillin (methicillin, oxacillin)?
What is the drug of choice for methicillin-resistant Staphylococcus aureus (MRSA)?
What is the drug of choice for methicillin-resistant Staphylococcus aureus (MRSA)?
What is the characteristic color of Staphylococcus aureus colonies on Mannitol salt agar (MSA)?
What is the characteristic color of Staphylococcus aureus colonies on Mannitol salt agar (MSA)?
What is the mechanism of resistance of Staphylococcus aureus to B-lactam antibiotics?
What is the mechanism of resistance of Staphylococcus aureus to B-lactam antibiotics?
Which gene is altered in Staphylococcus aureus to confer resistance to nafcillin (methicillin, oxacillin)?
Which gene is altered in Staphylococcus aureus to confer resistance to nafcillin (methicillin, oxacillin)?
What is the drug of choice for Vancomycin-resistant Staphylococcus aureus (VRSA)?
What is the drug of choice for Vancomycin-resistant Staphylococcus aureus (VRSA)?
What is the characteristic feature of Type IV CA-MRSA?
What is the characteristic feature of Type IV CA-MRSA?
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